Real Estate - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Real Estate [Abstract]
Operating lease right-of-use assets	$ 709.7	$ 683.7
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Lease liabilities	$ 610.5	$ 597.6
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other liabilities	Other liabilities
Outstanding performance and surety bonds, standby letters of credits and guarantees	$ 614.2	$ 498.5